Cushion storage unit



FIG. 1 is a top perspective view of a cushion storage unit illustrating my new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a back view thereof; and,

FIG. 6 is a top view thereof. 

CLAIM I claim the ornamental design for a cushion storage unit, as shown and described. 